... 3. Flexible expert service in prepainted steel sales SPECIFICATION of prepainted galvanized steel coils: 1) AVAILABLE DESIGNATION QualityQ/BQB ... 610mmCoated Mass:Base plateAvailable Coated Mass(g/m^2)Galvanized Steel80, 100, 120, 160, 180Galvalume Steel50, ... door, rainwater drainage pipe, retailer boothInsideDoor, doorcase, light steel roof structure, folding screen, elevator, stairway, vent ...